on a recent homework assignment, Eli needed to solve the equation d^2 = 49. He icorrectly wrote g = -7
1 answer:
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Answer:
Option A
x=6 , y=9
Step-by-step explanation:
As we can see in the figure that point T is the mid point of rectangle and there are two diagonals QS and PR
So in basic geometry we know that the length of the diagonal from the mid point i.e. Taking the diagonal QS the length of QT and TS would be equal because they are same diagonal which is cut into two parts by point T
Similarly the Length of RT and the length of TP would be same
From all this we deduct that
3x = 2y ..................(i)
and
y + 3 = 2x ................(ii)
From equation (i)
3x = 2y
Dividing both sides by 3 the equation becomes
x= ....................(iii)
Putting this value in equation (ii)
y + 3 = 2()
y+3 =
multiplying both sides by 3
3(y+3)=
the equation becomes
3y+9=4y
subtracting 3y from both sides
3y-3y+9=4y-3y
y=9
Putting the value of y in equation (iii)
x=
solving it
x=
x=6
so x=6 and y=9 is answer which is option A
Answer:
Option b.
Step-by-step explanation:
Consider the below figure attached with this question.
A computer program selects blue,red,green as the background color each time the program is used.
Blue background = 12 times
Red background = 21 times
Green background = (45-12-21) times = 12 times
Blue background = Green background
Red background ≠ Green background
Green is just as likely as blue to appear, but not as likely as red.
Therefore, the correct option is b.
